PDF malware analysis — malicious · 9e0aaf42c74b7dcc

MALICIOUS

PDF

89.9 KB Created: 2021-02-21 02:59:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: eea9b0272259146f9751966343bb16f8 SHA-1: d6af9ffb510b3059140758e2f54bbd5166228c0a SHA-256: 9e0aaf42c74b7dcc75f7a7fa3127733852640a6d15321e6cdc37a62e62d9e28c

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely used to deliver a secondary payload or redirect to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a 'field guide'. No scripts were extracted, but the presence of embedded URLs and the nature of the ClamAV detection (Pdf.Phishing.Trojan) strongly suggest a phishing or trojan distribution attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://seumenha.ru/wix?keyword=field+guide+to+awkward+silences
- https://static.s123-cdn-static.com/uploads/4417535/normal_6004d068210b2.pdf
- http://vebilodugisugod.iblogger.org/pemotexovuwawikuzuga.pdf
- https://cdn.sqhk.co/xuzuvazol/jexicML/head_basketball_cheat_apk_download.pdf
- https://static.s123-cdn-static.com/uploads/4452193/normal_5fd0996b6acd4.pdf
- http://pihodze.com/bileke_fonksiyon_zelliklerilfl3r.pdf
- https://cdn-cms.f-static.net/uploads/4383308/normal_60222d65ea865.pdf
- https://cdn.sqhk.co/powirafawume/hjhRig7/food_wars_season_2_netflix.pdf
- http://lutikewoduwafev.iblogger.org/wahl_home_pro_basic_clipper_kit_uk.pdf
- http://rineset.xyz/casadio_enea_grinder_manualc3vu6.pdf
- http://tublitalia.space/xikivamoracpw3n.pdf
- https://cdn.sqhk.co/nimenodeloxa/hjifB10/cute_free_ringtones_for_iphone_7_plus.pdf
- http://2220202.ru/47432743757jvj1n.pdf
- https://static.s123-cdn-static.com/uploads/4464522/normal_600540a758144.pdf
- https://cdn.sqhk.co/foseziwate/tij6jd0/80004162588.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://takodibunogudas.epizy.com/rewetunupiwoje.pdf
- https://s3.amazonaws.com/kefodek/primate_cladogram_worksheet.pdf
- http://renizovakosa.epizy.com/35713586782.pdf
- https://s3.amazonaws.com/wefemabeni/35670510932.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000122bc.bin` `82f5e92c77f42708483a6925a95642f52a73912285e323f31aef57a1923c4da5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x122BC	5216 bytes
`font_01_sfnt_off000134aa.bin` `d5f3b2139cdcccc2c5697f8aab8f3ad048f1a3d1d1e8ed002671ec45eaa01d01`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x134AA	10720 bytes

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